In order to add the ARA data as a subunit result,
and therefore see that data reflected in the
openstack-health [1] dashboard, we add the
generation of subunit data using the expected
file name [2].
[1] http://status.openstack.org/openstack-health/
[2] dde067b268/jenkins/jobs/macros.yaml (L994)
Change-Id: I4479e2894822a88ea0454f38b1a91eaba120529e